Center band of a pen



FIG. 1 is a perspective front view of a center band of a pen;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof; the right side elevation view being a mirror image thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective front view of the center band of a pen, shown in use.

The broken lines shown in the drawings illustrate portions of the center band of a pen that form no part of the claimed design. 

CLAIM The ornamental design for a center band of a pen, as shown and described. 